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Last modified by Xiaoling on 2023/07/18 10:12
From version 189.2
edited by Xiaoling
on 2022/07/22 10:33
Change comment: There is no comment for this version
To version 175.1
edited by Bei Jinggeng
on 2022/06/23 11:40
Change comment: Uploaded new attachment "image-20220623113959-5.png", version {1}

Summary

Details

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Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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58 58  * Tri-color LED to indicate working status
59 59  * Datalog feature
60 60  
61 +
62 +
63 +
64 +
61 61  == 1.3 Specification ==
62 62  
63 63  
... ... @@ -82,6 +82,10 @@
82 82  * ±2°C accuracy from -55°C to +125°C
83 83  * Operating Range: -55 °C ~~ 125 °C
84 84  
89 +
90 +
91 +
92 +
85 85  = 2. Connect LHT65N to IoT Server =
86 86  
87 87  == 2.1 How does LHT65N work? ==
... ... @@ -263,6 +263,9 @@
263 263  * The 7th byte (EXT #): defines the external sensor model.
264 264  * The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
265 265  
274 +
275 +
276 +
266 266  === 2.4.1 Decoder in TTN V3 ===
267 267  
268 268  When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
... ... @@ -293,6 +293,9 @@
293 293  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
294 294  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
295 295  
307 +
308 +
309 +
296 296  === 2.4.3 Built-in Temperature ===
297 297  
298 298  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
... ... @@ -461,16 +461,15 @@
461 461  
462 462  * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
463 463  
464 -(% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
465 -|(% style="width:60px" %)**Bits**|(% style="width:90px" %)**7**|(% style="width:100px" %)**6**|(% style="width:90px" %)**5**|(% style="width:100px" %)**4**|(% style="width:60px" %)**[3:0]**
466 -|(% style="width:96px" %)**Status&Ext**|(% style="width:124px" %)None-ACK Flag|(% style="width:146px" %)Poll Message FLAG|(% style="width:109px" %)Sync time OK|(% style="width:143px" %)Unix Time Request|(% style="width:106px" %)Ext: 0b(1001)
478 +[[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
467 467  
468 -* (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
469 -* (% style="color:blue" %)**Sync time OK**: (%%) 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
470 -* (% style="color:blue" %)**Unix Time Request**:(%%)  1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
480 +* Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
481 +* Sync time OK:  1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
482 +* Unix Time Request:  1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
471 471  
472 472  
473 473  
486 +
474 474  ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
475 475  
476 476  In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
... ... @@ -481,43 +481,8 @@
481 481  
482 482  AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
483 483  
484 -For example:
485 485  
486 -AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
487 487  
488 -
489 -Or use **downlink command A2** to set the same.
490 -
491 -The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
492 -
493 -When the measured output voltage of the sensor is not within the range of 0.1V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series.
494 -
495 -[[image:image-20220628150112-1.png||height="241" width="285"]]
496 -
497 -
498 -When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
499 -
500 -[[image:image-20220628150714-4.png]]
501 -
502 -
503 -When the voltage collected by ADC_IN1 is less than the minimum range, the minimum range will be used as the output; Similarly, when the collected voltage is greater than the maximum range, the maximum range will be used as the output.
504 -
505 -1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
506 -
507 -[[image:image-20220628151005-5.png]]
508 -
509 -
510 -2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
511 -
512 -[[image:image-20220628151056-6.png]]
513 -
514 -
515 -3) Within range
516 -
517 -[[image:image-20220628151143-7.png]]
518 -
519 -
520 -
521 521  == 2.5 Show data on Datacake ==
522 522  
523 523  (((
... ... @@ -577,12 +577,10 @@
577 577  
578 578  There are two methods:
579 579  
580 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
581 -1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after the network recovery.
558 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
559 +1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
582 582  
583 -Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
584 584  
585 -[[image:image-20220703111700-2.png||height="381" width="1119"]]
586 586  
587 587  
588 588  === 2.6.2 Unix TimeStamp ===
... ... @@ -1025,21 +1025,8 @@
1025 1025  )))
1026 1026  )))
1027 1027  
1028 -(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1029 1029  
1030 -Total bytes: 8 bytes
1031 1031  
1032 -**Example:**AA0100010001003C
1033 -
1034 -WMOD=01
1035 -
1036 -CITEMP=0001
1037 -
1038 -TEMPlow=0001
1039 -
1040 -TEMPhigh=003C
1041 -
1042 -
1043 1043  == 2.8 LED Indicator ==
1044 1044  
1045 1045  The LHT65 has a triple color LED which for easy showing different stage .
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1053 1053  * RED LED when external sensor is not connected
1054 1054  * For each success downlink, the PURPLE LED will blink once
1055 1055  
1019 +
1020 +
1021 +
1056 1056  == 2.9 installation ==
1057 1057  
1058 1058  (% _mstvisible="1" %)
... ... @@ -1066,24 +1066,8 @@
1066 1066  
1067 1067  [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1068 1068  
1069 -**1m long breakout cable for LHT65N. Features:**
1035 +1m long breakout cable for LHT65N
1070 1070  
1071 -* (((
1072 -Use for AT Command， works for both LHT52/LHT65N
1073 -)))
1074 -* (((
1075 -Update firmware for LHT65N, works for both LHT52/LHT65N
1076 -)))
1077 -* (((
1078 -Supports ADC mode to monitor external ADC
1079 -)))
1080 -* (((
1081 -Supports Interrupt mode
1082 -)))
1083 -* (((
1084 -Exposed All pins from the LHT65N Type-C connector.
1085 -)))
1086 -
1087 1087  [[image:image-20220619092421-3.png||height="371" width="529"]]
1088 1088  
1089 1089  
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1103 1103  * Operating Range: -40 ~~ 125 °C
1104 1104  * Working voltage 2.35v ~~ 5v
1105 1105  
1056 +
1057 +
1058 +
1106 1106  = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1107 1107  
1108 1108  (((
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1168 1168  
1169 1169  * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1170 1170  
1124 +
1125 +
1126 +
1171 1171  == 4.2 Set External Sensor Mode ==
1172 1172  
1173 1173  Feature: Change External Sensor Mode.
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1189 1189  
1190 1190  * 0xA20702003c: Same as AT+SETCNT=60
1191 1191  
1148 +
1149 +
1150 +
1192 1192  == 4.3 Enable/Disable uplink Temperature probe ID ==
1193 1193  
1194 1194  (((
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1216 1216  * **0xA800**  **~-~->** AT+PID=0
1217 1217  * **0xA801**     **~-~->** AT+PID=1
1218 1218  
1178 +
1179 +
1180 +
1219 1219  == 4.4 Set Password ==
1220 1220  
1221 1221  Feature: Set device password, max 9 digits
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1262 1262  
1263 1263  * There is no downlink command to set to Sleep mode.
1264 1264  
1227 +
1228 +
1229 +
1265 1265  == 4.7 Set system time ==
1266 1266  
1267 1267  Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
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1358 1358  
1359 1359  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1360 1360  
1326 +
1327 +
1328 +
1361 1361  == 4.13 Auto Send None-ACK messages ==
1362 1362  
1363 1363  (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
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1376 1376  
1377 1377  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1378 1378  
1347 +
1348 +
1349 +
1379 1379  = 5. Battery & How to replace =
1380 1380  
1381 1381  == 5.1 Battery Type ==
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1748 1748  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1749 1749  
1750 1750  
1751 -== 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1752 1752  
1753 -[[image:image-20220623110706-1.png]]
1754 -
1755 -
1756 -[[image:image-20220623112117-4.png||height="459" width="343"]]
1757 -
1758 -(((
1759 -In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600** (%%)to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**(% style="color:red" %))(%%) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
1760 -)))
1761 -
1762 -
1763 -Input password and ATZ to activate LHT65N,As shown below:
1764 -
1765 -[[image:image-20220615154519-3.png||height="672" width="807"]]
1766 -
1767 -
1768 -== 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1769 -
1770 -[[image:image-20220623110706-1.png]]
1771 -
1772 -(% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1773 -
1774 -[[image:image-20220615170542-5.png]]
1775 -
1776 -
1777 -(% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1778 -
1779 -(% _msthash="506146" _msttexthash="52173160" %)
1780 -First connect the four lines；
1781 -
1782 -(% _msthash="506146" _msttexthash="52173160" %)
1783 -[[image:image-20220623113959-5.png||height="528" width="397"]]
1784 -
1785 -(% _msthash="506146" _msttexthash="52173160" %)
1786 -Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1787 -
1788 -(% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1789 -
1790 -[[image:image-20220615171334-6.png]]
1791 -
1792 -
1793 -Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1794 -
1795 -
1796 -When this interface appears, it indicates that the download has been completed.
1797 -
1798 -[[image:image-20220620160723-8.png]]
1799 -
1800 -
1801 -Finally,restart reset device again
1802 -
1803 -
1804 1804  = 7. Order Info =
1805 1805  
1806 1806  
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1828 1828  
1829 1829  * (% style="color:red" %)**E3**(%%): External Temperature Probe
1830 1830  
1750 +
1751 +
1752 +
1831 1831  = 8. Packing Info =
1832 1832  
1833 1833  
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1841 1841  * Device Size:  10 x 10 x 3.5 cm
1842 1842  * Device Weight: 120.5g
1843 1843  
1766 +
1767 +
1768 +
1844 1844  = 9. Reference material =
1845 1845  
1846 1846  * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1847 1847  
1773 +
1774 +
1775 +
1848 1848  = 10. FCC Warning =
1849 1849  
1850 1850  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
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